Calibre 4.21



Calibre is an open source e-book library management application that enables you to manage your e-book collection, convert e-books between different formats, synchronize with popular e-book reader devices, and read your e-books with the included viewer.

It acts as an e-library and also allows for format conversion, news feeds to e-book conversion, as well as e-book reader sync features and an integrated e-book viewer.

Calibre"s features include: library management; format conversion (all major ebook formats); syncing to e-book reader devices; fetching news from the Web and converting it into ebook form; viewing many different e-book formats, giving you access to your book collection over the internet using just a browser.

Calibre 4.21 new features:

  • Kobo driver: Add support for the new Kobo Nia

  • Cover grid: Vertically center covers that are smaller than the available space. Closes tickets: 1886731

  • Quickview panel: Add a checkbox to easily toggle if virtual libraries are respected. Closes tickets: 1886347

  • When creating custom columns allow specifying a default value to be applied to new books for that column. Closes tickets: 1886079

Bug fixes

  • Edit book: Fix initial sync of preview panel to cursor position sometimes not working when a new HTML file is opened for editing
  • Fix changed author sort name not being used when adding another book by the author to the library. Closes tickets: 1886492
  • Cover browser: improve rendering of text with heavily hinted fonts. Closes tickets: 1886239
  • Viewer: Fix CBC comic files not being viewed correctly. Note that you have to reload the book via the viewer controls to apply the fix. Closes tickets: 1886307
  • Viewer: Fix Table of Contents not correct for comics.
  • Viewer: Ignore the zero width non-joiner character in searches
  • Viewer: Fix a regression in the previous release that broke reading of books with mathematics and also tags without href attributes. Closes tickets: 1886192

Improved news sources

  • 1843 magazine
  • Caravan Magazine

Download: Calibre 4.21 for Windows | Portable | Windows 64-bit | ~100.0 MB (Open Source)
Download: Calibre 4.21 for MacOS | 160.0 MB
Download: Calibre 4.21 for Linux
View: Calibre Home Page | Calibre Screenshot

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